SVAN 957
Sound & Vibration Meter & Analyzer, Type 1
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OVERVIEW
The SVAN 957 is all digital, Type 1 sound & vibration level meter along with analyser. Instrument is intended to general acoustic and vibration measurements, environmental monitoring, occupational health and safety monitoring.
Three acoustic or
vibration profiles allow parallel measurements with independently defined
filters and RMS detector time constants. Each profile provides significant
number of results (e.g. for sound: Leq, LMax, LMin, LPeak, Spl, SEL or RMS,
PEAK, VDV, MTVV in the case of vibration measurements). Advanced time
history logging for each profile provides complete information about
measured signal in non-volatile 32 MB internal memory or external USB Memory
Stick and can be easy downloaded to any PC using USB
interface and SvanPC+ software.
All required weighting filters (e.g.: A, C, Wk, Wc, Wh) including the latest ISO 2631-1&2 standard are available with this instrument. RMQ detector enables direct measurement of the Vibration Dose Value (VDV). Using computational power of its digital signal processor the SVAN 957 instrument can, simultaneously to the meter mode, perform real time 1/1 or 1/3 octave analysis including statistical calculations, acoustic dose measurements, FFT analysis and Reverberation Time measurements. The time history logging of 1/1 octave, 1/3 octave and FFT analysis is provided. The time domain signal recording on the external USB memory stick is also available.
Fast USB 1.1 interface (12 MHz) creates real time link for the PC “front-end” application of the SVAN 957 instrument. Instrument can be remotely controlled and measurement results can be downloaded to a PC using the RS 232 (GPRS) or IrDA interfaces. Instrument is powered from four AA standard or rechargeable batteries (separate charger is required). The External DC power source or USB interface can be also used for powering the instrument. Robust, hand held case and light weight design accomplish the exceptional features of this new unusual instrument.
FEATURES
Sound & Vibration Meter & Analyser
- Type 1 sound level measurements meeting IEC 61672:2002
- General vibration measurements (acceleration, velocity and displacement) and HVM meeting ISO 8041:2005 standard
- Three parallel independent profiles
- 1/1 and 1/3 octave real time analysis
- Acoustic dose meter function
- FFT real time analysis (1600 lines in up to 20.0 kHz band)
- Reverberation Time measurements
- Advanced Data Logger including spectra logging
- USB Memory Stick providing almost unlimited logging capacity
- Time domain signal recording
- Advanced trigger and alarm functions
- USB 1.1 Host & Client interfaces (real time PC “front end” application supported)
- RS 232 (GPRS) and IrDA interfaces
- Integration time programmable up to 24 h
- Power supply by four AA rechargeable or standard batteries
- Hand held, light weight and robust case
- Easy in use
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TECHNICAL SPECIFICATIONS
| Sound level meter & analyser | |
| Standards | Type 1: IEC 61672-1:2002 (IEC 60651, IEC 60804) |
| Meter mode |
SPL, Leq, SEL, Lden, Ltm3, Ltm5,
Statistics - Ln (L1-L99), LMax, LMin, LPeak Simultaneous measurement in three profiles with independent set of filters and detector time constants |
| Analyser |
1/1 octave* real time analysis, Type
1, IEC 61260 1/3 octave* real time analysis, Type 1, IEC 61260 (option) Acoustic dosimeter* meeting IEC 61252 with SV 25_2 microphone (option) FFT* real time analysis (1600 lines, up to 20.0 kHz band)(option) RT 60 Reverberation time analysis in 1/3 octave bands (option) |
| Weighting Filters | A, C and Z |
| RMS Detector |
Digital True RMS detector with Peak
detection, resolution 0.1 dB Time Constants: Slow, Fast, Impulse |
| Microphone | 7052H, 20mV/Pa, prepolarised 1/2" condenser microphone with SV 12L IEPE preamplifier |
| Measurement Range | 22 dBA RMS ÷ 141 dBA Peak (with 5 dB margin from noise level) |
| Internal Noise Level | less than 17 dBA RMS |
| Frequency Range | 0.5Hz ÷ 20kHz, microphone dependent, with 7052H microphone 10 Hz ÷ 20 kHz |
|
Vibration level meter & analyser |
|
| Standards | ISO 8041:2005 and ISO 10816-1 |
| Meter mode | RMS, VDV,
MTVV or MAX, Peak, Peak-Peak Simultaneous measurement in three profiles with independent set of filters and detector time constants |
| Analyser | 1/1
octave* real time analysis 1/3 octave* real time analysis (option) FFT* real time analysis (1600 lines, up to 20.0 kHz band) (option) RPM* rotation speed measurement parallel to the vibration measurement (option) |
| Filters | Wk, Wc, Wd, Wj, Wh, Wm, HP1, HP3, HP10, Vel1, Vel3, Vel10, VelMF, Dil1, Dil3, Dil10, KB |
| RMS & RMQ Detectors | Digital
True RMS & RMQ detectors with Peak detection, resolution 0.1 dB, Time Constants: from 100 ms to 10 s |
| Accelerometer (option) | SV 3185D general purpose accelerometer with 100 mV/g sensitivity |
| Measurement Range | accelerometer dependent, 0.003 ms-2 RMS ÷ 1000 ms-2 Peak, with SV 3185D accelerometer |
| Frequency Range | 0.5Hz ÷ 20kHz, accelerometer dependent, 2 Hz ÷ 10 kHz, with SV 3185D accelerometer |
|
Basic Data |
|
| Input | IEPE interface with TNC connector |
| Frequency Range | 0.5 Hz ÷ 20 kHz, sampling rate 48 kHz |
| Data Logger* | Time
History logging to internal memory or USB Memory Stick Time domain signal recording on USB Memory Stick (option) |
| Display | LCD 128 x 64 pixels plus icons with backlighting |
| Memory | 32 MB non-volatile flash type, external USB Memory Stick (not included) |
| Interfaces | USB 1.1
Client, USB 1.1 Host, RS 232 (with SV 55 option), IrDA (option) External I/O - AC output (1 V Peak) or Digital Input/Output (Trigger-Pulse) |
| Power Supply | Four AA
batteries (alkaline) operation time > 12 h (6.0 V / 1.6 Ah)** Four rechargeable batteries (not included) operation time > 16 h (4.8 V / 2.6 Ah)** SA 17A external battery pack operation time > 24 h (option)** External power supply 6 V/500 mA DC ÷ 15 V/ 250 mA DC USB interface 500 mA HUB |
| Environmental Conditions |
Temperature from -10 oC to 50 oC Humidity up to 90 % RH, non-condensed |
| Dimensions | 338 x 82 x 42 mm (with microphone and preamplifier) |
| Weight | Approx. 0.6 kg with batteries |
*
each function parallel to the meter mode** with USB 1.1 Host function not active and backlight off
PICTURE
SVAN 957 Sound & Vibration Meter & Analyser
